Marine carburetor clutch control



- Nov. 19, 1946. c. POZGAY MARINE GARBURE'I'OR CLUTCH CONTROL Filed May 18, 1945 INVENTOR. v Carl Pozgay ATTORNEY.

l atented Nov. 19, 1946 UNITED STATES PATENT OFFICE MARINE CARBURETOR CLUTCH CONTROL Carl Pozgay, Jamaica, N. Y.

Application May 18, 1945, Serial No. 594,421

' 8 Claims. 1

This invention relates to new and useful improvements in a power boat control system.

More specifically, the invention relates to power control systems such as power boat control systems which include a motor throttle and a reverse gear. The invention contemplates the use of a rocker member having a neutral position, a forward position, and a reverse position. It is proposed that this rocker member be connected with the reverse gear for the operation thereof. It is proposed to provide a motor throttle control shaft connected with the motor throttle so that the throttle may be open and closed to various degrees as the shaft is turned, starting at a neutral position, and operable in either direction to open the throttle as desired.

The invention also proposes the provision of means for turning the motor throttle control shaft mentioned in the previous paragraph and including a hand lever having a central or neutral position, a forward position and a reverse position. A control member is mounted on said shaft for controlling said rocker member upon but the slightest forward or reverse movements of the hand lever. With this arrangement the reverse gear may be moved to its neutral, forward and reverse positions, and simultaneously the throttle may be opened to any extent desired.

.Several embodiments of the invention are proposed which distinguish from each other in the construction and operation of the rocker member and the control member. However, each embodiment produces the identical results.

Still further the invention proposes a power control system as briefly explained, which is efficient, reliable and which may be manufactured and sold at a low cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawing, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:

Fig. 1 is a fragmentary perspective view of a power boat control system embodying this invention and illustrated schematically applied to a motor boat.

Fig. 2 is a fragmentary enlarged transverse sectional view through the casing which houses the controller member and the rocker member, this view being as though taken on the line 2-2 of Fig. 1.

Fig. 3 is a fragmentary sectional view similar to Fig. 2, but illustrating another embodiment of the invention.

A new and improved power control system in accordance with this invention, includes a motor throttle ill operated by a control lever H, and a reverse gear I2. Further details of the power boat will not be given in this specification because the various parts are standard. However, it should be understood that the motor throttle i0 is in the nature of .the usual carburetor which controls the motor of the power boat and has a return spring 58 normally returning it to its closed position. The reverse gear i2 is in the nature of the usual reverse gear used on power boats which has three positions, a neutral position, a forward position and a reverse position. The reverse gear is operated by a lever Hi. This lever i6 may be moved to three positions representing the three positions mentioned.

The new and improved controller includes a casing 15 which may be stationarily mounted within the motor boat. The motor boat is illustrated by the dot and dash lines ll. A rocker member 18 is located within the casing l6 and is capable of moving to three positions representing the three positions of the reverse gear 2. The rocker member I8 is fixed on a shaft I9 which is turnably mounted in the casing 16 and projects from one side of the, casing. A lever 20 is mounted on the shaft 19. A connecting rod 2| connects the levers l4 and 20 for unitary movements.

A motor throttle control shaft 24 is connected with the motor throttle ID for the operation thereof. Said shaft 24 is turnably mounted through the casing Iii. A lever 25 is mounted upon the outer end of the shaft 2 5 and connects witha connecting rod 2"! a connection of which slidably passes through the end of the lever H which controls the throttle l9. Collars 2B are adjustably mounted on the rodZl by which it is possible to set the control lever l I of the throttle Ill to its initial position.

The motor throttle control shaft 24 is associated with means by which it may be turned to various degrees to control the motor throttle Ill. This means includes a lever 29 mounted upon the shaft 24 and. connecting with a connecting rod 30 which connects with a pivotally mounted hand lever 3|. 'This hand lever Si is pivotally mounted upon a pintle 32. The hand lever 3| may be moved to various positions to control the motor throttle l0 and the reverse gear 12. A control member 33 is'mounted upon the motor throttle control shaft 24, within the casing I6.

with a recess 49 at its top center.

This control member 33 is provided with a roller 35 which engages against and operates the rocker member I8. The rocker member I8 is in the nature of a double cam having arms 36 projecting to the sides of the shaft l9. Springs 31 are mounted upon the casing l6 and engage the arms 36 for normally holding the rocker memher Is in its neutral position.

The arms 36 are of such curvatures that when the control member 33 is moved slightly right or left the rocker member It will be pivoted right or left, compressing the right spring 3'! or the left spring 31. Once moved it stops in a fixed position. However, the arms 36 are of such curvatures that when the rocker member I8 is in its right or left position one of the arms 36 is then concentric with said motor throttle control shaft For this reason it is possible to continue moving the control member 33 without affecting the rocker member l3, unless the control member 33 is moved back to its neutral position.

The operation of the power boat control system may be understood from the following:

When the hand lever 3| is in this neutral position the motor throttle Hi will be throttled down, or will be in its neutral position. The handle 3| may now be moved forward to cause the motor boat to move forward. When the handle 3| is moved forward, the motion will be transmitted to turn the shaft 24 which moves the control member 33 so that the rocker member I8 is pivoted in a direction in which the levers 23 and I4 and the connecting rod 2! will operate the reverse gear l2 to place it in its forward position. It is now possible to continue moving the hand lever 3|, forward to any amount. This will open the motor throttle ID to any amount increasing the speed of the motor boat. However, the reversing gear |2 will not be affected during this additional motion, just mentioned, because the roller 35 will merely ride idly along one of the arms 33 of the rocker member I8.

The hand lever 3| may be moved back to its neutral position which will move the reverse gear I 2 and the throttle back to their neutral starting positions. The hand lever 3| may now be moved rearward to reverse the motor boat. Upon the slightest rearward motion of the hand lever 3| the shaft 24 will move, moving the control member 33 which will move the rocker member I8 into its reverse condition. This indirectly reverses the reversing gear |2. Now it is possible to continue moving the hand lever 3| as far rearward as desired and the further it is'moved the further the motor throttle II] will be open. This controls the speed at which the boat will travel in reverse.

In Fig. 3a modified form of the invention has been disclosed which essentially differs from the prior form in the construction and operation of the rocker member and the control member of this mechanism. More specifically, the motor throttle control shaft 40 is turnably mounted through the casing 4|. A lever 42 connects with the motor throttle control shaft 4|] and with a connecting rod 43 which connects with the pivotally mounted hand lever 3|. A lever 44 is mounted upon the motor throttle control shaft 40 and connects with a connecting rod 45 provided with collars 45 controlling the lever ll of the motor throttle l0.

A control member 48 is mounted upon the motor throttle control shaft 40. This control member 48 is semi-circular. However, it is formed A rocker member 50 is mounted upon a shaft 5| which is provided with an arm 52 connecting with a connecting rod 53which in turn connects with the lever l4 controlling the reverse gear I2. The rocker member 53 is provided with a roller 54 normally engaging the recess 49 of the control member 48. Spring operated plungers 55 engage the opposite sides of the rocker member 50 tending to hold it in its vertical or neutral position.

The operation of this form of the invention may be understood from the following:

When the hand lever 3|, is in its neutral position the reverse gear I2 will be in neutral and the throttle It] will be in its neutral position. When the handle 3| is moved forward a very slight amount the control member 48 will turn, moving the rocker member 59 a small distance laterally, as indicated by the dot and dash lines in Fig. 3. This motion of the rocker member 55 is indirectly transmitted to the reverse gear |2 to place it in its forward position. Now the hand lever 32 may be moved any additional amount forward which will cause the motor throttle control shaft 45 to turn and correspondingly move the control lever H of the throttle it. However, the rocker member 50 will not be affected by this additional motion. The control member 43 has been shown in an intermediate forward position I by the dot and dash lines in Fig. 3.

The hand lever 3| may be moved back to its neutral position and may be moved rearward to reverse the motor boat. \Vhen moved rearward, the control member 43 will turn rearwards swinging the rocker member 53 a slight distance in the other direction to that illustrated by the dot and dash lines in Fig. 3. Now the hand lever 3| may be moved a further amount rearward, for controlling the throttle Ii However, the re-v verse gear t2 will not be affected by this additional motion. It was reversed by the initial slight motion of the control member 48, and will remain in this condition until the control member 48 is moved back to its neutral position.

While I have illustrated and described the preferred embodiments of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modifications coming within the scope of the invention as defined in the appended claims.

Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:

1. In a power control system including a n1oto'r throttle and a reverse gear, a rocker member having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the siightest forward or reverse movements of said hand lever, said rocker member being mounted at its center upon a shaft and having arms extending to each side of said shaft.

2. In a power control system including a, motor throttle and a reverse gear, a rocker member having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the slightest forward or reverse movements of said hand lever, said control member being engageable with one or the other of said arms to throw the rocker member into its forwards or its reverse positions.

3. In a power control system including a motor throttle and a reverse gear, a rocker member having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the slightest forward or reverse movements of said hand lever, said control member being engageable with one or the other of said arms to throw the rocker member into its forwards or its reverse positions, and then said rocker member is movable along the length of one or the other of said arms without further affecting the rocker member.

4. In a power control system including a motor throttle and a reverse gear, a rocker member having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the slightest forward or reverse movements of said hand lever, said control member being provided with a roller which engages said rocker member.

5. In a power control system including a motor throttle and a reverse gear, a rocker member having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, a control member mounted on said shaft and controlling said rocker member upon but the slightest forward or reverse movements of said hand lever, and resilient means for urging said rocker member into its neutral position.

(i. In a power control system including a motor throttle and a reverse gear, a rocker me lo her having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the slight est forward or reverse movements of said hand lever, said controller member being arcuately shaped and being provided with a peripheral recess into which said rocker member engages.

7. In a power control system including a motor throttle and a reverse gear, a rocker memher having a neutral position and a forward position and a reverse position and connected with said reverse gear for the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and. reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the slightest forward or reverse movements of said hand lever, said controller member being arcuately shaped and being provided with a peripheral recess into which said rocker member engages, said rocker member being provided with a roller engaging said recess.

8. In a power control system including a motor throttle and a reverse gear, a rocker member having a neutral position and a forward position and a reverse position and connected with said reverse gear fOr the operation thereof, a motor throttle control shaft connected with said motor throttle, means for turning said shaft and including a hand lever having a neutral position and forward and reverse positions, and a control member mounted on said shaft and controlling said rocker member upon but the slightest forward or reverse movements of said hand lever, said controller member being arcuately shaped and being provided with a peripheral recess into which said rocker member engages, said rocker member being provided with a roller engaging said recess, and resilient means for urging said rocker member into a neutral position. CARL POZGAY. 

